Headspace single-drop microextraction and fibre optics-based cuvetteless micro-spectrophotometry for the determination of chloride involving oxidation with permanganate

Headspace single-drop microextraction has been investigated for the determination of chloride in conjunction with fibre optic-based cuvetteless micro-spectrophotometry which accommodates sample volume of 1 μL placed between the two ends of optical fibres. Method has been evolved for the determination of 0.025–4 mg L−1 of chloride involving its oxidation with permanganate in sulphuric acid medium, and reaction of chlorine with 2 μL drop of...